Bytes to Bits Converter
Convert byte to bit instantly. 1 B = 8 bit, worked steps and a full reference table.
How to use it
- Type the value in byte — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 B | 8 bit |
| 5 B | 40 bit |
| 10 B | 80 bit |
| 100 B | 800 bit |
One byte equals 8 bits (bit). To convert bytes to bits, multiply by 8; to go back the other way, multiply by 0.125 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What bytes and bits actually measure
Byte (B) — A byte is eight bits, historically the space for one character of text. File sizes and memory addressing.
Bit (bit) — A bit is one binary digit — a single 0 or 1. Network speeds and the lowest level of all digital storage.
Bytes to Bits conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| B | bit |
|---|---|
| 1 B | 8 bit |
| 2 B | 16 bit |
| 5 B | 40 bit |
| 10 B | 80 bit |
| 25 B | 200 bit |
| 50 B | 400 bit |
| 100 B | 800 bit |
How to convert bytes to bits by hand
Multiply the number of bytes by 8.
For example, 25 B × 8 = 200 bit.
Going the other way, divide by 8 — or multiply by 0.125, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many bit are in 1 B?
1 B equals exactly 8 bit. Multiply any value in byte by 8 to get bit.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026